Home / 70,599.36-97,428.48-40,389.60

Finding the Fourth Proportional to 70,599.36, 97,428.48 and 40,389.60

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Solution

The fourth proportional to 70,599.36, 97,428.48 and 40,389.60 is: 55,738.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,599.36 : 97,428.48 = 40,389.60 : x
  2. Step 2: Convert to fraction form
    70,599.36/97,428.48 = 40,389.60/x
  3. Step 3: Cross multiply
    70,599.36x = 97,428.48 × 40,389.60
  4. Step 4: Simplify right side
    70,599.36x = 3,935,097,335.81
  5. Step 5: Solve for x
    x = 3,935,097,335.81/70,599.36
  6. Step 6: Final answer
    x = 55,738.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.